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1. A student was performing the test for chloride in his unknown. When he added the five drops of HNO3, he observed bubbles forming (effervescence) in his unknown. Was chloride present in his unknown? How do you know? A student added barium chloride to her unknown and immediately witnessed the formation of a precipitate. She concluded that this white precipitate indicated the presence of chloride ion in her unknown. Is she correct? How do you know? A student has two unlabeled bottles of solution. One contains PO,3 and the other SO,²'. How can this student identify which is which?

1. A student was performing the test for chloride in his unknown. When he added the five drops of HNO3, he observed bubbles forming (effervescence) in his unknown. Was chloride present in his unknown? How do you know? A student added barium chloride to her unknown and immediately witnessed the formation of a precipitate. She concluded that this white precipitate indicated the presence of chloride ion in her unknown. Is she correct? How do you know? A student has two unlabeled bottles of solution. One contains PO,3 and the other SO,²'. How can this student identify which is which?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Name: Postlab Questions: 1. A student was performing the test for chloride in his unknown. When he added the five drops of HNO3, he observed bubbles forming (effervescence) in his unknown. Was chloride present in his unknown? How do you know? 2. A student added barium chloride to her unknown and immediately witnessed the formation of a precipitate. She concluded that this white precipitate indicated the presence of chloride ion in her unknown. Is she correct? How do you know? 3. A student has two unlabeled bottles of solution. One contains PO4³¯ and the other SO,?". How can this student identify which is which? Page 6 of 6
Transcribed Image Text:Name: Postlab Questions: 1. A student was performing the test for chloride in his unknown. When he added the five drops of HNO3, he observed bubbles forming (effervescence) in his unknown. Was chloride present in his unknown? How do you know? 2. A student added barium chloride to her unknown and immediately witnessed the formation of a precipitate. She concluded that this white precipitate indicated the presence of chloride ion in her unknown. Is she correct? How do you know? 3. A student has two unlabeled bottles of solution. One contains PO4³¯ and the other SO,?". How can this student identify which is which? Page 6 of 6
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